mm/slab: drain the free slab as much as possible
slabs_tofree() implies freeing all free slab. We can do it with just
providing INT_MAX.
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Acked-by: Christoph Lameter <cl@linux.com>
Cc: Jesper Dangaard Brouer <brouer@redhat.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/mm/slab.c b/mm/slab.c
index f36d349..a998d35 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -895,12 +895,6 @@
return 0;
}
-static inline int slabs_tofree(struct kmem_cache *cachep,
- struct kmem_cache_node *n)
-{
- return (n->free_objects + cachep->num - 1) / cachep->num;
-}
-
static void cpuup_canceled(long cpu)
{
struct kmem_cache *cachep;
@@ -965,7 +959,7 @@
n = get_node(cachep, node);
if (!n)
continue;
- drain_freelist(cachep, n, slabs_tofree(cachep, n));
+ drain_freelist(cachep, n, INT_MAX);
}
}
@@ -1117,7 +1111,7 @@
if (!n)
continue;
- drain_freelist(cachep, n, slabs_tofree(cachep, n));
+ drain_freelist(cachep, n, INT_MAX);
if (!list_empty(&n->slabs_full) ||
!list_empty(&n->slabs_partial)) {
@@ -2311,7 +2305,7 @@
check_irq_on();
for_each_kmem_cache_node(cachep, node, n) {
- drain_freelist(cachep, n, slabs_tofree(cachep, n));
+ drain_freelist(cachep, n, INT_MAX);
ret += !list_empty(&n->slabs_full) ||
!list_empty(&n->slabs_partial);